Plug-mounted background noise amplifier



FIG. 1 is a top plan view of a plug-mounted background noise amplifiershowing our new design;

FIG. 2 is a sectional view thereof, taken along line 2--2 of FIG. 1;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a sectional view thereof, taken along line 5--5 of FIG. 1;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a rear elevational view thereof; and

FIG. 8 is a left side elevational view thereof.

The ornamental design for a plug-mounted background noise amplifier, asshown and described.